/*
 * Copyright (C) 2016 Red Hat, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy ofthe License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specificlanguage governing permissions and
 * limitations under the License.
 *
 */

package config

import (
	"fmt"

	"github.com/skydive-project/skydive/config"
)

const (
	defaultConfigurationFile = "/etc/skydive/skydive.yml"
)

// LoadConfiguration from a configuration file
// If no configuration file are given, try to load the default configuration file /etc/skydive/skydive.yml
func LoadConfiguration(cfgBackend string, cfgFiles []string) error {
	if len(cfgFiles) == 0 {
		config.InitConfig(cfgBackend, []string{defaultConfigurationFile})
		if err := config.InitLogging(); err != nil {
			return fmt.Errorf("Failed to initialize logging system: %s", err.Error())
		}
		return nil
	}

	if err := config.InitConfig(cfgBackend, cfgFiles); err != nil {
		return fmt.Errorf("Failed to initialize config: %s", err.Error())
	}

	if err := config.InitLogging(); err != nil {
		return fmt.Errorf("Failed to initialize logging system: %s", err.Error())
	}

	return nil
}
